Lock.



H. G. VOIGHT.

LO'CK.

APPLICATIONFILED NOV. 10. 1911.

l,29'?,?5& i Patented Mar. 18,1919.

F .5 J15 Z 1 1 I? l/VKENTOR.

ATTORNEY.

HENRY Gr. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO SARGENT & COM- PANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK.

Specification of Letters Patent.

Patented Mar. 18, 1919.

Application filed. November 10, 1917. Serial No. 201,280.

To all whom it may concern:

Be it known that I, HENRY G. VOIGHT, & citizen of the United States, residing in New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exact description.

This invention relates to locks, and more particularly to extensible cylinder locks which are adjustable for application to doors of different thickness. I

The primary object of the invention is the production of an extensible lock which permits a maximum range of adjustment with comparatively few parts, the parts being so constructed that a material increase is obtained in the length of the bearings for the guide pins and adjustable screw over the type of extensible locks now in general use, without decreasing the range of adjustment.

Another object of the invention is to simplify and improve the mechanism by which the extension is adjustably secured to the main part of the lock.

To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawing:

Figure 1 is a side elevation of a cylinder lock embodying my improvement, showing the lock partly extended;

Fig. 2 is a similar view from the opposite side of the lock;

Fig. 3 is an elevation of the lock shown in Fig. 1, looking in the direction of the arrow, the lock being shown in its shortest adjustment and the extension being shown as out by a section taken substantially on the line 3-3 of Fig. 5;

Fig. 4: is a rear end view of the main part of the lock, the extension with its guide pins and adjusting screw being removed;

Fig. 5 is a view showing the inner face of the extension with the pins and adjusting screw secured thereto.

My improved cylinder lock comprises a l main part or cylinder lock proper 10', and an extension 11 detachably connected therewith. The main part 10 is, for the most part, of usual construction, having a case 12, a face plate or escutcheon 13, .a pin tumbler extension 14, and the usual key-plug or barrel (not shown) inside of the case 12, which barrel is locked against rotation by the usual pin tumblers (not shown).

In the embodiment illustrated, the lock proper 10 is provided with a plurality of lugs 15, 16 and 17 rigidly formed upon the inner end of the main part of the lock. These lugs are provided with cylindrical ends or bosses positioned to project beyond the end of the main part of the lock. The

lug 15 is provided with a threaded drill hole 18 and the lugs 16 and 17 are provided with smooth drill holes 19 and 20. The key barrel, which is not shown, is provided with the well-known washer 21 having a key-slot formed therein. The washer may be secured to its barrel by means of screws 22. The

projecting cylindrical ends of the lugs 16 and 17 are parftially cut away inorder to provide a clearance space in which the washer 21 rotates. I j v The detachable extension 11 for the cylinder lock may consist of a disk-like head 23 provided with the usual threads upon its periphery, by which the cylinder may be secured to the case of the mortise lock. However, it will be apparent that my invention is not necessarily limited to this particular type of head. The extension head 23 is provided with a plurality of smooth guide pins 24 and 25, which are rigidly mounted in the head and project therefrom at right angles to the face of the same. The head 23 is further provided with an adjusting screw 26. This screw is rotatably mounted in the head and is held against longitudinal movement in one direction relatively to the head by the tapered head of the screw being seated in a correspondingly tapered counter sunk opening in the extension head, and the screw is held against longitudinal movement in the opposite direction by a washer 27, which washer is secured in place on the screw by setting up a portion of the screw around the washer. The head of the screw is provided with the usual screw-slot, by means of which it may be rotated.

The head 23 is provided also with the well-known roll-back 28, which roll-back may be conveniently operated by means of a pair of pins 29, 30,- rigidly secured to the roll-back. The roll-back is held against longitudinal movement relatively to the head by a washer 31 rigidly secured thereto and mounted inside of the head 23. The washer 21, which is mounted on the key barrel, not

shown) is provided with drill holes32 and 33. These holes extend almost entirely through the key barrel and operatively re- 29, 30' which are slidably received in the openings 32, 33, and in the key barrel.

The disk-like head 23 is provided with sockets or clearance spaces 34, 35-and 36 formed concentric with the pins 24 25 and screw 26 respectively. The sockets are formed in the head 23 to receive the projecting' cylindrical ends ofthe lugs 15, 16 and 17. This structure permits-the head to be movedtoward the inner end of the main part of the lock until it abuts against the same. It should be noted that it is the cylindrical portion of each lug and. not'thelug properth-at extends beyond the inner face of the main part of the lock; that-is, the shoul- 30 der formed where the cylindrical portion of eachlug-joins onto the lug proper, is' flush with theend of the main part of the lock. This structure provides an abutting face upon each lug proper lying in the plane of the in-ner end of the lock, against which the disk 23 will seat firmly when the lock is given its shortest adj ustment.-

The disk-like structure of the head 23 formsahousing inwhich the lugs 15, 16 and 40 17 project, when the parts assumethe position shown in Fig; 3, the arrangement beingisuch that when the lock is given its shortest'adjustment, the head will not abut against the ends of the lugs but the inner faceof-the head will contact with the inner face of the lock.

By constructing my look so that the lugs are permitted to project Within the head of the extension, I am able to' materially increase the length of the bearings for: the

pins 24:, 25, and the bearing 'of'the adjusting screw26, without decreasing the range through which the extension 11 may be adjusted. Furthermore, this-arrangement by which -theends of the lugs may project into part of the lock, I form what may be termed a telescopic adjustment between the sliding pins and the lugs, thereby increasing the 3 range of adjustment in proportion" to the extent the lugs are permitted to project into the extension. 7

In order to form a clearance space for the ends of the pins 24, 25 and adjusting screw 26 when the extension assumes its shortest adjustment, the escutcheon 13 is provided upon its inner face with re cesses or sockets 37 into which the ends of the pins just mentioned may extend.

It will be apparent from the above-description of my extensible lockthat I have .80 devised a simple, serviceable lock which permits of a long range of adjustment for the extension and which at all times provides a strong, firm supporting connection between the main part of the lock and its extension.

The disklike. head 23 is preferably formed of solid metal turned or cast into the shape of the desired disk and then drilled orbored to form the sockets or clearance spaces 34, 35' and 36. 90

Without limiting myself to the construction shown, I claim: 7

1. An extensible cylinder lock comprising a main part and an extensionadjustably connected thereto, said main part-having an integral lug for supporting said extension, said lug having a cylindrical end'projectingbeyond the end of said main part of the look into a socket of the extension.

2. An extensible cylinder lockco-mprising a main part and an extension adjustably' connected thereto, supporting means rigidlyseeured .to said extension, and lugs coiiperating with said supporting means formed integfral'with the main part of the lock,sa id lugs having cylindrical end-s pro -jecting beyond the end o'f-said main part,

and said extension having receiving sockets formed therein for saidprojecting ends;

3. An extensible cylinder lock comprising a main-part and an extension adjustably connected thereto, an adjusting screw for said extension, and a coiiperating lug. for said'screw formed integral upon the main part of the lock, said lug having a; cylin- 1115 drical end projecting beyondthe end of the main part of thev lock, and said extension having a socket formed-therein for receiving said projecting end of the lug.

4. An extensible'cylinder lock having a main part and an extension, and aplurality of means upon the extension for-adjusta'bly supporting said extension upon the main part ofthe'lock, said-extension having a clearance socket formedtherein ad- ,125

" jacent each supporting means.

5. An'extensible cylinderlock comprising a mam part and an ex;tens1on, sa1d extension comprising a solid cylindrical head having projeetions extending therefrom to support the head upon the main part of the lock, said head also having a clearance socket formed therein adjacent each projection.

6. An extensible cylinder lock comprising a main part and an extension adjustably connected thereto, and lugs integral with said main part for supporting said extension, said lugs having cylindrical ends projecting beyond the end of the main part of the lock and forming abutments upon said lugs, positioned to contact with the inner face of the extension, whereby the extension may be firmly seated upon said ab-utments.

7. An extensible cylinder lock comprising a main part and an extension adjustably connected thereto, guide pins rigidly secured to said extension, and pin-receiving lugs integral with the main part of the lock, said lugs having reduced ends projecting beyond the end of said main part, and said extension having receiving sockets formed therein for said projecting ends.

8. An extensible cylinder lock comprising a main part and an extension adj ustably connected thereto, and lugs integral with said main part for supporting said extension, said lugs having cylindrical bosses projecting therefrom beyond the end of the main part of said lock, thus forming shoulders adjacent the cylindrical bosses, said shoulders being positioned to be engaged by the inner face of the extension, whereby the extension may be firmly seated upon said shoulders.

9. An extensible cylinder lock comprising a main part and an extension, supporting pins secured to said extension, pin 'receiving lugs upon said main part, said lugs being positioned to extend beyond the end of the main part of said lock, and said extension having lug receiving sockets formed therein, whereby the range through which said extension may be adjusted is increased.

In witness whereof, I have hereunto set my hand on the 7th day of November, 1917.

HENRY G. VOIG HT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

